Quote Originally Posted by bluegtp91 View Post
Meh, this is where the "scan because every car is different" comes into play.

Plenty of locals here are running knock free on just a 3.4" with headers as no other mods...well and intake/180*/plugs/wires...but those really don't do much...and a good tune.
Oh i ran fine and knock free on a 3.4 on just headers, intake, and AL104's -- But i also had to run mid 10's for AFR.